TJ Enthusiast

After working on helicopters in the army for 8 years, all joints that are not pure rubber can do that fairly quickly when they decide to go...that is why I am looking at the synergy bushings. They are the closest to a rubber impregnated, multi layer lord mount that I have found in the auto industry. Tim

TJ Expert

After working on helicopters in the army for 8 years, all joints that are not pure rubber can do that fairly quickly when they decide to go...that is why I am looking at the synergy bushings. They are the closest to a rubber impregnated, multi layer lord mount that I have found in the auto industry. Tim

You are a bit confused as to what you are seeing. That is the aftermath of him taking a ball joint press to the ball and shoving it through the washers, hardened ones at that, which retain the urethane races and the ball. That pic should only be used to define ignorance of a system and how it is supposed to be disassembled.

The reason that the joint was loose is very likely due the ignorance of the fabricator who welded it in place without removing the urethane races. We see it all the time.

You will not regret the use of any JJ in a suspension application regardless of anything others may try to convince you of. I have been running them personally since about 2000 and have installed hundreds of them. Since I am on the hook for any issues that generally show up with components I use and install, I tend to be very careful in what I select. I have never regretted the use of JJ's in any of my builds. Nor have we regretted the use of them in any of the race cars they have been used in.

TJ Expert

Wouldn't you be concerned about the jj's putting additional strain on the Synergy joints? jj's don't return to center, so they could potentially leave the Synergy joint in a constant state of misalignment, thus creating potential premature wear. Now, if the Synergy joint has enough muscle to bring the jj's back in line, I guess it would be doable. Just a thought. I could be way off base.

TJ Expert

Yes, that was the issue with the Duroflex joints and using a jj at the other end. the durometer is just too soft to allow any fight back of a jj when misaligned. Like I said, I could be way off base here. I used to run Currie arms up front, and a jj will be where it wants to be. As an example, notice my driver side lower arm and where the jj is misaligned at. that is sitting in a level parking lot at work during a normal commute to work.View attachment 67809
I've had those Currie arms on a bench vise before, and I can tell you it takes some effort to misalign a jj. Having a different joint at the other end that wants to self center would take said joint some muscle to bring the jj back to its center, IMO. Is a Synergy joint up to the task?

They actually said why on here. We did it because KEVLAR!!!!! We don't know if it helps, we don't think it hurts, and it doesn't cost you any more, so buy our stuff. Said by Matsun if you can find it. It would be helpful if folks understand that the Kevlar used in tires is in the form of the belts and the Kevlar in bushings is ground up fiber.

TJ Enthusiast

TJ Enthusiast

Mr Blaine, one last thing. Since Syngery doesn't seem to have a DDB bushing for that location, what would you recoommend if I was to go with the DDB bushing instead of a JJ system? Would you put in new Clevite or JJ at the axle? Thank you

TJ Enthusiast

Mr Blaine, one last thing. Since Syngery doesn't seem to have a DDB bushing for that location, what would you recoommend if I was to go with the DDB bushing instead of a JJ system? Would you put in new Clevite or JJ at the axle? Thank you

I am going with JJs as you only install the main bushing bodies once vs pushing them in each time you need to service them. To me that makes more sense than risking messing up the housing or passenger side bracket. Synergy used DDBs with JJs in some of their arms when they were first introduced so centering is really not an issue or they would not have done it.

Member

After spending hundreds getting rid of my RE super flex control arms and going 100% rubber joints, All rubber joints on my new track bars, rubber in my shocks, my ride is smooth and has less felt vibrations, to me. I am more of a fan of rubber than poly.....

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Produced from 1997-2006, many consider the Jeep Wrangler TJ to be the last true Wrangler. I started Jeep Wrangler TJ Forum to serve as a resource for TJ owners around the world. You'll find everyone here to be friendly, and most importantly, drama free!